Thill-coupling.



No. 857.340. j PATENTED JUNE 18 1907. v n I J. F. GALVIN. v THI-LL GOUPLING.. APPLICATION FILED JAN. 2, 1907.

To all whom, it may concern:

. UNITED STATES "PATENT OFFICE.

JoI-Iu'F. .GALVIN, or NEW YORK, N. Y.

ITHILIL-OOUPLING.

I Specification of Letters Patent.

Patented. June 18, 1907.

Applicationfiled January 2, 1907- Serial No. 350,367.

Be it known that I, JOHN F. GALVIN, a citizen of the United States, and a resident of the city, county, and State of New York,

' able to place between the knuckle and re cesses, a packing to prevent wear and rat-c tling. I

One of the objects of my invention'is to provide a packing. which can be made at very little cost, readily put in place and effectually prevent rattling.

Other objects will appear from the hereinafter description.

The invention is illustrated in the accompanying drawing in which the same'reference character indicates the same part in the several views. I

Referring to the drawing, Figure 1 is a cross section of a part of the coupling showing my improved packing in the fixed and movable jaws. Fig. 2 is a perspective view of the packing. Fig. 3 is another perspective view looking in a different direction from Fig. 2. Fig. 4 is a view of the blank from which the packing is made.

The part lettered A onthe drawing represents the fixed jaw which is provided with a spherical recess a. i

B represents the movable jaw which in this instance is hinged to the fixed jaw and is provided with a recess 7) on the inner face thereof.

O is the draft-iron, having on the end thereof a ball or spherical knuckle D which .fits in the recesses in the jaws of the coupling. The

diameter of this knuckle is less than the diameter of the recesses in thejaws, and unless packing is placed between the knuckle and jaws, the knuckle will rattle in the thill coupling. To prevent this I have provided the packing E, which is shown in place in Fig. 1 of the drawing.

In producing my packing I make a blank, shown in Fig. 4., which may be cut, stamped or otherwise formed from proper material, preferably sheet brass, although it may be made of any other metal, and in some cases it place between may be made out of hardened leather or other suitable material. This blank, it is seen, consistsof two main members (1 connected together by a strip or neck 6. The two main members 6 are then pressed into ball or spherical shape on the same side.

These two pressed main members are then turned toward each other, forming the packing shown in Figs. 2 'and 3, which can be opened or snapped over the ball or knuckle D, the spherical or cup-shaped portion of the packing fitting the knuckle and the recesses in the thillcoupling. The main portions of the packing may be formed into spherical or cup-shape at the same time the blank is cut out of the material.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1'. In a thill coupling, a draft-eye formed of a fixed jaw and a movable jaw, each jaw having aspherical recess therein, a spherical knuckle fitting in said recesses, and an interposed packing consistmg of two cup-shaped members permanently connected together.

2. In a thill coupling, a draft-eye c0nsisting of a fixed jaw and a movable jaw, said jaws being provided with spherical recesses, a draft-eye having a spherical knuckle on the end thereof fitting into said recesses, and an interposed metal packing consisting of two cup-shaped or spherical main members connected together by aneck.

3. A packing for a thill coupling, consisting of two cup-shaped metal members, the concave portions thereof facing each other, said members being connected together by a metal strip, said packing being adapted to fit around a spherical knuckle of a coupling.

4. A packing for a thill coupling, consisting of two. cup shaped members formed out of sheet metal, the concaveportions of these two sheet metal members facing each other, said members being connected together by a narrow metallic strip formed integral with the sheet metal members, said packinigbeing adapted to fit around a spherical knuc le of a thill coupling.

In witness whereof I have hereunto set my hand at the city, county and State of New York, this 31st day of December, I906.

JOHN F. GALVIN.

- Inpresence of.

. JOHN J. RANAGAN. ISABEL RIcHARDs. 

